An origin of infinite range dipole-dipole correlations in soft matrices with off-center impurities: K1-xLixTa1-yNbyO3 and other systems
| Autor(en): | Vikhnin, VS Kapphan, SE |
Stichwörter: | electrostriction; EXCITONS; infinite-range interaction; local piezo-effect; Nuclear Science & Technology; off-center impurities; Physics; Physics, Condensed Matter; Physics, Fluids & Plasmas | Erscheinungsdatum: | 2002 | Herausgeber: | TAYLOR & FRANCIS LTD | Journal: | RADIATION EFFECTS AND DEFECTS IN SOLIDS | Volumen: | 157 | Ausgabe: | 6-12 | Startseite: | 849 | Seitenende: | 851 | Zusammenfassung: | A model of cooperative behaviour for K1-xLixTa1-yNbyO3 (KLTN) and for other disordered systems like ferroelectric relaxors is considered from the point of view of contribution of infinite-range dipole-dipole interactions. It is shown that a local piezoeffect for off-center impurities in crystals with rather high electrostriction is responsible as origin of a infinite-range electric dipole-dipole interaction via elastic fields as well as for a co-existence of ferroelectric and glass-like states with reentrant glass effect. |
ISSN: | 10420150 | DOI: | 10.1080/10420150215768 |
Zur Langanzeige
Seitenaufrufe
1
Letzte Woche
0
0
Letzter Monat
0
0
geprüft am 01.06.2024
